ALEXANDRIA, Va., July 15 -- United States Patent no. 12,660,799, issued on June 23.
"Electric pet toy" was invented by Yuelv Tu (Lianjiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric pet toy is provided, which includes a main unit, a rope, and a fixing device. The main unit includes a shell, a driving motor, and a roller. The driving motor is fixed on the shell. The roller includes a center shaft and side walls that are oppositely arranged on two sides of the center shaft. The center shaft is connected to an output shaft of the driving motor. When working, the driving motor can drive the roller to rotate clockwise or counterclockwise. One end of the rope is connected to the roller, and ...